Flashcards in 7/23 Questions Exam 1 Deck (20)
Type IVa articular receptors would be present in what locations?
Articular Fat Pads or
Adventitia of Blood Vessels
Type IVb articular receptors would be present in what locations?
Accessory ligaments in general, dense in the posterior longitudinal ligament of the spine
Type IV articular receptors would be absent in what part(s) of the synovial (diarthrosis) joint?
Synovial Menisci or Intra-articular discs
What are the three modifications of articular synovial membrane?
1) synovial villi
2) articular fat pads or haversian glands
3) synovial menisci and intra-articular discs
What is the generic function of modifications of articular synovial membrane?
aid in spreading synovial fluid
Where are the articular fat pads located?
In the fibrous layer of synovial membrane; they are absent from articular cartilage, synovial menisci, intra-articular disc
Articular fat pads are most numerous in what location along the vertebral column?
Intra-articular discs are a feature of what joints examples?
Synovial menisci are a feature of what joint examples?
What are the layers of the synovial membrane?
Outer fibrous layer and inner (lumenal) cellular layer AKA synovial lamina intima
What are the specific functions of type A synovial cells?
What is the specific function of type B synovial cells?
Secrete proteinaceous substances and hyaluronic acid
What is the source of nutrition for articular cartilage?
Blood vessels in the synovial membrane
Sinuses of the bone marrow cavity
From synovial fluid itself
Which collagen fiber type predominates in articular cartilage?
What are proteoglycans composed of?
A core protein and glycosaminoglycans
What is the primary function of bound glycosaminoglycans in articular cartilage?
Form a network for water retention
Cartilage is able to change shape due to compression, a characteristic known as ____?
What is implied when cartilage is said to have elastic properties?
Cartilage can deform and returns to original volume rapidly, a time independent property
What is implied when cartilage is said to have viscoelastic properties?
Cartilage can deform but returns to original volume slowly, a time dependent property